<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>欢迎页</title>
    <style type="text/css">
        .center {
            top: 0; bottom: 0; left: 0; right: 0; margin: auto; position: absolute;
        }
    </style>
</head>
<body>
    <img class="center" alt="welcome" title="欢迎" src="../static/app/images/welcome.gif" th:src="@{/app/images/welcome.gif}"/>
</body>
</html>